Rohrer & Klingner SketchINK - Jule (Dusty Mauve) yellow ink it is pH-neutral and therefore

it is pH-neutral and therefore safe in all kinds of vintage fountain pens

be warned that it can look quite light out of fine nibs

travel notebooks

1 nib options while Esterbrook inventory allows

in some editions

Rohrer & Klingner SketchINK - Jule (Dusty Mauve) yellow ink it is pH-neutral and thereforeRohrer & Klingner SketchINK Jule is advertised as a wine red, but it's a more more purple leaning color: a kind of dusty mauve fountain pen ink that's completely waterproof thanks to being a pigment based ink. About the sketchINK Line Waterproof Pigment Fountain Pen Inks Rohrer & Klingners sketchINK line sits in a category of its own: true pigment based, waterproof inks designed for artists, sketchers, and anyone who needs their writing to stay put.